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v3.26.1

INVESTMENTS IN VARIABLE INTEREST ENTITIES - NARRATIVE (Details) $ in Millions | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2026 USD ($) investment | Jun. 30, 2025 USD ($) | Jun. 30, 2026 USD ($) investment | Jun. 30, 2025 USD ($) | Dec. 31, 2025 USD ($)
Variable Interest Entity [Line Items] |  |  |  |  |
Interest expense | $ 55.3 | $ 59.1 | $ 106.2 | $ 121.1 |
Variable interest entities net realized gain (losses) on investments |  |  | (2.1) | (3.3) |
Net losses from the sales of fixed maturities |  |  | (1.1) | (4.3) |
Variable interest entities, change in allowance for credit losses |  |  | 1.0 | 1.0 |
Variable interest entity, gross investment losses from sale |  |  | 1.1 | 3.5 |
Variable interest entities, investments sold |  |  | $ 14.4 | 54.5 |
Number of investments held by VIE, in default | investment | 0 |  | 0 |  |
Less than 12 months | $ 4,900.2 |  | $ 4,900.2 |  | $ 1,864.0
Gross unrealized losses of investments in unrealized loss position for less than 12 months | 98.6 |  | 98.6 |  | 58.5
12 months or greater | 4,801.9 |  | 4,801.9 |  | 5,964.9
Gross unrealized losses of investments in unrealized loss position for more than 12 months | 797.5 |  | 797.5 |  | 836.7
Investments held in limited partnerships | 789.3 |  | 789.3 |  |
Unfunded commitments to limited partnerships | 692.6 |  | 692.6 |  |
Variable Interest Entity, Primary Beneficiary |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Interest expense |  |  | 7.8 | $ 13.7 |
Less than 12 months | 71.8 |  | 71.8 |  | 86.7
Gross unrealized losses of investments in unrealized loss position for less than 12 months | 0.9 |  | 0.9 |  | 0.9
12 months or greater | 76.1 |  | 76.1 |  | 34.2
Gross unrealized losses of investments in unrealized loss position for more than 12 months | 0.9 |  | 0.9 |  | $ 0.3
Variable Interest Entity, Primary Beneficiary | Non Investment Grade |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Total amortized cost | 296.2 |  | 296.2 |  |
Variable interest entity, gross unrealized gains fixed maturity securities | 0.6 |  | 0.6 |  |
Variable interest entity gross unrealized losses fixed maturity securities | 2.9 |  | 2.9 |  |
Variable interest entity, allowance for credit losses fixed maturity securities | 1.6 |  | 1.6 |  |
Variable Interest Entity, Not Primary Beneficiary | Non Investment Grade |  |  |  |  |
Variable Interest Entity [Line Items] |  |  |  |  |
Estimated fair value of fixed maturity securities | $ 292.3 |  | $ 292.3 |  |

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